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- Question
What problem is solved by Dijkstra's banker's algorithm?
Options- A. mutual exclusion
- B. deadlock recovery
- C. deadlock avoidance
- D. cache coherence
- E. None of the above
- Correct Answer
- deadlock avoidance
ExplanationThe Banker's algorithm is a resource allocation & deadlock avoidance algorithm developed by Edsger Dijkstra that tests for safety by simulating the allocation of pre-determined maximum possible amounts of all resources, and then makes a "safe-state" check to test for possible deadlock conditions for all other pending activities, before deciding whether allocation should be allowed to continue. - 1. In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?
Options- A. best fit
- B. first fit
- C. worst fit
- D. buddy
- E. None of the above Discuss
- 2. When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?
Options- A. COPY C:\DOS\COMMAND.COM A:\
- B. ATTRIB C:\*.SYS A:\
- C. XCOPY C:\DOS\*.* A:\
- D. SYS C: A:
- E. None of the above Discuss
- 3. Who invented the first junction transistor?
Options- A. Smith
- B. Gomes
- C. Fisher
- D. Shockley
- E. None of the above Discuss
- 4. Changes made periodically to a system, after its implementation, is known as system
Options- A. analysis
- B. design
- C. development
- D. maintenance
- E. none of the above Discuss
- 5. Which of the following NIS clients returns the name of the NIS server used by the NIS client?
Options- A. ypwhich
- B. ypbind
- C. ypcat
- D. yppoll
- E. None of the above Discuss
- 6. Slack is the calculated time span within which the event must occur:
Options- A. true
- B. false
- C. cannot be said
- D. All of the above
- E. None of the above Discuss
- 7. The online hotel reservation systems having database capabilities are a good example of
Options- A. database management system (DBMS)
- B. marketing information system
- C. manual information system
- D. managerial information system.
- E. None of the above Discuss
- 8. The macro processor must perform
Options- A. recognize macro definitions and macro calls
- B. save the macro definitions
- C. expand macro calls and substitute arguments
- D. All of the above Discuss
- 9. The advantage of a command processor running only built-in commands is:
Options- A. flexibility to the users in running lists of commands by simply collecting them in named batch command files
- B. the command set being common across different hardware configurations
- C. users can create system programs and run them as commands
- D. the processing is much faster than would other-wise be the case when user defined commands are used
- E. None of the above Discuss
- 10. A drum timer is a good example of:
Options- A. an output actuator
- B. an input sensor
- C. a position sensor
- D. a sequence controller
- E. None of the above Discuss
More questions
Correct Answer: best fit
Correct Answer: SYS C: A:
Correct Answer: Shockley
Correct Answer: maintenance
Correct Answer: ypwhich
Correct Answer: true
Correct Answer: managerial information system.
Correct Answer: All of the above
Correct Answer: the command set being common across different hardware configurations
Correct Answer: a sequence controller
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